Product Name: HELLO II Lithium Battery Tattoo Pen Choice: top half: round; bottom half: coreless motor Net weight: round: 209g square: 206g gross weight: 345g Size: 153* (32mm square for the battery part, 33mm round), (31.5-32.5mm for the handshake part, concave and convex surface) Packing: Lithium battery tattoo pen + USB power cord Color: black and black circle Structure: Built-in lithium battery, one-piece tattoo pen, the middle can be unscrewed to replace the upper half of the lithium battery; Application: 1. Android USB data cable 2. Most of the integrated needles on the market (Xia’an standard size) 3. There is no charging head inthe configuration, and the mobile phone charging head can be used directly; Product parameters: 1. Material: aluminum alloy; 2. Process: CNC integrate.